Thanks for writing to Health Care Magic, I am Dr Asad Riaz, I have closely read your question and I understand your concerns, I will hereby guide you regarding your health related problem.
heart burnng can be due to acidity or can be it is due to undelyng cardiac patoogy..if u were my pateint i would like to take teail hstroy that is this heart burn occur ussally n what time it come ,do u have metallic mouth taste esp at early morning to look for is u having GERD
,or having heart burn with exercise that sgeest u miht have exertional dyspnea
that can be due to underlyng heart ischemia
..do detail exam n then run some tests, like do PH 24 hr monitring for GERD,but most of time it is history n examination based dx.... ecg to look for ischmic chnges,if these are present then do cardiac enzymes ,ETT in case of hidden ischemia,c angio if needed n then tx accodrngly onthe line of IHD...for GERD need cousre of PPI n avoid spicy food,lift bed head side 5-6 inches before sleep...
I hope this answered your question, if you have more feel free to ask.
General and Family Physician.